What figure of speech expresses a resemblance between different kinds of things using 'like' or 'as'?

A simile is a figure of speech that draws a comparison between two unlike entities by using the words "like" or "as." It enhances the description by creating vivid imagery that allows readers to make connections between the familiar and the unfamiliar. For example, saying "as brave as a lion" establishes a clear resemblance between bravery and a lion, which is typically known for its courage. This comparison adds depth to the description and helps convey emotions or qualities effectively. The use of "like" or "as" is essential in crafting a simile, distinguishing it from other rhetorical devices.